Five Shu point theory

Practitioners will have very differing views on how to answer this. Personally I do not strongly consider needle direction in the influence of the points, but others would disagree with this to varying degrees. I consider the points more like wells that go into a web of fascial communication instead of a linear model along the lines of the meridians (see muscle sinew channels if you are unfamiliar with what I am discussing). So in short, in my clinical experience needle directionality doesn’t make much of a difference, if any, on the effect of a properly devised treatment protocol.